Martin v



M. V. B. WHITE. Automatic Shelf for Ovens.

No. 241,901. Patented May 24,1881.

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Witnesses WQJM...

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UNITED STATES PATENT EEIcE.

MARTIN V. B. WHITE, OF ALBANY, NEW YORK, ASSIGNOR OF ONE-FOURTH TO EDMUND RAFTERY, ()F SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 241,901, dated May 24,

Application filed December 16, 1878.

To all whom it may concern:

Be it known that I, MARTIN V. B. WHITE, of the city and county of Albany, and State of New York, have invented certain new and useful Improvements in Automatic Shelves for Stove-Ovens, of which the following is a full and exact description.

My invention consists of a sliding shelf placed within the stove-oven and adapted to operate by the oven-door, to which is attached an arm having a rod pivoted thereto, the free end of said rod being provided with a stud which engages with the sliding shelf to move it at the proper times, thesaid shelf being provided with slotted openings, in which the stud of the rod slides without moving the shelf during certain positions of the oven-door, as herein described.

In the accompanying drawings, which form a part ofthis specification, and to which reference is herein made, Figure l is a horizontal section of a stove-oven containing my improvements; and Fig. 2, a portion of the same, showing the sliding shelf protruded from the oven.

' As shown in the drawings, A is the oven of a stove; B, the oven-doors, pivoted to the stove by the hinges b. All arm, b, is attached to each oven-door at its back and near its hinged edge. This arm may be cast upon the door, or it may be attached thereto in a fixed position, or, when desired, made adjustable to different heights.

O is the sliding shelf, which should be arranged in relation to the bottom plate, D, of the oven to leave sufficient space between the shelf and bottom plate to permit the arm I) and its attached rod to move freely therein. Said shelf is provided with two curved slotted openings, 0, arranged, as shown,- at opposite sides of a center line drawn parallel to the sides of the stove, and having their rounded sides toward each other. Said slotted openings are countersunk around their entire perimeters on the upper side of the shelf, and each one, at its end nearest the hinges of the door, terminates in an enlargement, 0, whereby the shoulders c are formed. 1

Rods E are pivotally attached to the arms b, and each of said rods is provided atits free inner end with a button-headed stud, 0, whose head will freely pass through the enlargement o, and whose neck is proportioned to pass into the contracted portion of the slotted openings 0, while the head engages in the countersunk portions of said openings to sustain the free end of the rod E, thereby permitting the studs e-to slide freely from end to end of the slotted openings without interference with articles placed on the shelf.

The operation of my invention is as follows:

When the oven-door B is closed the several parts will be in the position shown by the full lines in Fig. 1. On opening either oven-door the movement of its arm I) first pushes its attached rod toward the farther end of the slotted opening 0 until its arm I) and rod E arein the position indicated by the lines marked 1 in Fig. 1, after which the continued opening movement of the door draws its rod E backward until the stud e engages with the front side of the opening 0, as indicated by the dotted lines marked 2 in Fig. 1; and during the movements just described the stud 0 will pass through the entire length of the slotted opening 0 without producing any movement of the shelf 0, and the oven-door will then stand perpendicularly 7 to the side of the stove, thereby leaving the oven open to permit an inspection of its contents. The door may then be closed, if desired, without effecting any movement of the shelf; or, if required, the opening movement of the door may be continued beyond the point just described, thereby causing its rod E, whose stud 0 still remains in relation to the opening 0 in the position marked 2, Fig. 1, to draw the shelf (3 partially out of the doorway, as shown in Fig. 2, and the rod E of the opposite door, by reason of its movable joints, readily changes its position to permit this movement of the shelf. When the shelf is protruded it is automatically returned to its place inside the oven c by the closiu g movement of the door. The first phase of this latter movement causes the stud c to engage with the shoulder 12 of the opening 0, where it continues to bear until the movement of the door has pushed the shelf back into the oven, which act will be accomplished when the door has returned to its position perpendicular to the stove side, at which time the disposition of the parts will be such that the stud 0 will readily slip from the shoulder c and I pass into the slotted opening 0, so as to permit the door to shut closely.

From the foregoing it will be seen that no moving said shelves have heretofore been conmovement of the shelf 0 occurs until after the oven-door in its opening movement has passed a line perpendicular to the side of the stove, and that the shelf, when drawn out of the oven, is restored to its place in the oven by the time the door in its closing movement has again reached the said perpendicularline. This feature is a novel one, and a distinctive one of my invention, and, as it permits an examination of the contents of the oven without moving the shelf, it constitutes a valuable and convenient improvement on its predecessors.

By the arrangement herein shown and described theshelt'cau be projected through either doorway, but it is obvious that it can be readily applied to one door only, when desired; butl do not confine myself to the particular form of openings shown, as I am aware that the same effect may be produced by openings of ditl'ea out forms that will permit the stud c to pass through them without affecting the position oi the sliding shelt', as herein described.

I am aware that oven-doors provided with arms connected by means of rods to sliding oven-shelves for the purpose of automatically structed; but in these earlier constructions the slides have been connected to the doors in such manner that any movement of the oven-door will produce a synchronous movement of the sliding shelf. Therefore I do not broadly claim as my invention an oven-door having an arm connected to a sliding shelf for the purpose of effecting, during the entire movement of said door, a simultaneous and corresponding movement of the shelf; but

What I claim as my invention is The combination, with the sliding shelf 0, provided with slotted openings 0, as herein described, ol' the oven door or doors B, each provided with an arm, I), and a rod, E, thclatter having at its free end a stud, 0, adapted to slide in the slotted openings 0, as herein set forth, all of said parts being constructed and arranged in relation to each other to operate as herein specified.

MARTIN V. B. WHITE.

Witnesses WILLIAM ll. Low, T. PIERCE. 

